// This should remove all green...
 const out = vec3(0,1,0 ).toVar();
    const o = Fn(()=>{ 

        const value = float( 0 ).toVar();

        Loop( value.lessThan( 10 ), () => {
            value.addAssign( 1 );  
            out.y.subAssign( 0.1 );
        });    

        return out ; 
    });